Device Type	Mainboard
Processor	80486SX/80486SX2/80487SX/ODP486/80486DX/80486DX2
Processor Speed	25/33/50(internal)/66(internal)MHz
Chip Set	Unidentified
Video Chip Set	Unidentified
Maximum Onboard Memory	64MB
Maximum Video Memory	1MB
Cache	None
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), riser slot, VGA feature connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
PS/2 mouse port	J2	VGA feature connector	J14
Serial port 1	J3	IDE interface LED	J26
Serial port 2	J4	Speaker	J27
Parallel port	J5	Soft off power supply	J29
VGA port	J6	Soft off power supply	J30
Floppy drive interface	J7	Chassis fan power	J38
IDE interface 1	J9	Wake on modem connector	JP5
IDE interface 2	J10	Riser slot	SL1

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	On board video disabled	J15	Pins 1 & 2 closed
	On board video enabled	J15	Pins 2 & 3 closed
	Parity enabled	J50	Pins 1 & 2 closed
	Parity disabled	J50	Pins 2 & 3 closed
»	Password normal operation	JP14	Pins 1 & 2 closed
	Password clear	JP14	Pins 2 & 3 closed

SIMM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(1) 256K x 36	None
2MB	(1) 512K x 36	None
2MB	(1) 256K x 36	(1) 256K x 36
3MB	(1) 512K x 36	(1) 256K x 36
4MB	(1) 1M x 36	None
4MB	(1) 512K x 36	(1) 512K x 36
5MB	(1) 1M x 36	(1) 256K x 36
6MB	(1) 512K x 36	(1) 1M x 36
8MB	(1) 2M x 36	None
8MB	(1) 1M x 36	(1) 1M x 36
9MB	(1) 2M x 36	(1) 256K x 36
10MB	(1) 2M x 36	(1) 512K x 36
12MB	(1) 2M x 36	(1) 1M x 36
16MB	(1) 4M x 36	None
16MB	(1) 2M x 36	(1) 2M x 36
17MB	(1) 256K x 36	(1) 4M x 36

SIMM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1
18MB	(1) 512K x 36	(1) 4M x 36
20MB	(1) 4M x 36	(1) 1M x 36
24MB	(1) 4M x 36	(1) 2M x 36
32MB	(1) 8M x 36	None
32MB	(1) 4M x 36	(1) 4M x 36
33MB	(1) 8M x 36	(1) 256K x 36
34MB	(1) 8M x 36	(1) 512K x 36
36MB	(1) 8M x 36	(1) 1M x 36
40MB	(1) 8M x 36	(1) 2M x 36
48MB	(1) 8M x 36	(1) 4M x 36
64MB	(1) 8M x 36	(1) 8M x 36

VIDEO MEMORY CONFIGURATION

Note: Board is factory installed with either 512KB or 1MB video memory.

CPU SPEED SELECTION
Speed	J37
25MHz	Closed
33MHz	Open
50iMHz	Closed
66iMHz	Open

CPU TYPE SELECTION
Type	J24	J25	J31
80486SX	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
80486SX	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
80487SX	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
ODP486	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
80486DX	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
80486DX2	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
Note: The settings for the 80486SX2 are unidentified.